package com.dayu.gulimall.order.controller;

import com.dayu.common.exception.NoStockException;
import com.dayu.gulimall.order.service.OrderService;
import com.dayu.gulimall.order.vo.OrderConfirmVo;
import com.dayu.gulimall.order.vo.OrderSubmitVo;
import com.dayu.gulimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.concurrent.ExecutionException;

/**
 * @author dayu
 * @version 1.0
 * @email dayu007@foxmail.com
 * @date 2021/4/24 17:11
 * @description web页面跳转
 */
@Controller
public class OrderWebController {

    @Autowired
    OrderService orderService;

    @GetMapping("/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        OrderConfirmVo vo = orderService.confirmOrder();
        model.addAttribute("data", vo);
        return "confirm";
    }

    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo vo, Model model, RedirectAttributes redirectAttributes) throws ExecutionException, InterruptedException {
        System.out.println(vo);
        SubmitOrderResponseVo responseVo = null;
        try {
            responseVo = orderService.submitOrder(vo);
        } catch (NoStockException e) {
            String msg = "库存不足";
            redirectAttributes.addFlashAttribute("msg", msg);
            return "redirect:http://order.gulimall.com/toTrade";
        }catch (Exception e){
            return "redirect:http://order.gulimall.com/toTrade";
        }

//       下单：创建订单，验证令牌，验证价格，锁库存。。。

        if (responseVo.getCode() == 0) {
            // 下单成功来到支付页面
            model.addAttribute("submitOrderResp", responseVo);
            return "pay";
        } else {
            String msg = "下单失败:";
            switch (responseVo.getCode()) {
                case 1:
                    msg += "订单信息过期，请刷新再提交";
                    break;
                case 2:
                    msg += "订单商品价格发生变化，请确认后在提交";
                    break;
                case 3:
                    msg += "库存锁定失败，商品库存不足";
                    break;
            }
            redirectAttributes.addFlashAttribute("msg", msg);
            //下单失败，返回订单确认页重新确认订单信息
            return "redirect:http://order.gulimall.com/toTrade";
        }
    }


}
